I have 2012 gt with 6000 miles on it. I had the oil changed on Tuesday and the tires rotated at sanders ford in Jacksonville nc. Thursday was a warm day so I tried to use my a/c but it didn't work. So Friday I take it back to the same garage and they said a rock had come up from the ground and went through my cooler and now it's going to cost me $600.00 to have it repaired. They said it wasn't covered by the warranty because it was a road hazard. Does anyone have any suggestions of what I can do not to pay the $600.00? It also seems really fishy to me because I know the a/c was working fine Monday before I had the dealer work done.